Improvement in apparatus for distilling coal-oils



J. L. ALBERGER.

Refin ing OH.

No. 37,798. Patented Mar. 3, 1863.

Inventor,

Witnesses:

ogu% W M 4 AM. P HOTO-LITHO. C0, N.Y. (OSBURN E'S PR oczss.)

. condensed water.

UNITED STATES PATENT ()FFICE.

J. L. ALBERGER, OF BUFFALO, NE? YORK.

IMPROVEMENT IN APPARATUS FOR DISTILLING COAL-OILS.

Specification forming part of Letters Patent No. 37,798, dated March 3, 1803.

To all whom it may concern:

Be it known that I, J. L. ALBERGER, of Buffalo, in the county of Erie and State of New York,- have invented a new and Improved Apparatus for Distilling and Deodorizing Itock-0il; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a longitudinal vertical central section of my invention. Fig. 2 is a transverse vertical section of the same.

Similar letters of reference in both views indicate corresponding parts.

To enable those skilled in the art to make and use my invention, I will proceed to describe its construction and operation with reference to the drawings.

The retort A, which is made of sheet metal or of any other suitable material, is provided with projecting flanges a, that are supported by rollers b in such a manner that a rotary or an oscillating motion can be imparted to the retort. Access can be had to the interior of the retort through the man-hole c, and a steamcoil, B, is secured to the inner surface of the retort. One end of this coil passes out at the side and near one end of the retort, and it connects with a suitable pipe, through which it receives steam, and its other end passes out through the bottom of the retort and near to the opposite end of the latter, and it is closed by a stop-cock, d, which serves to let off the Both heads of the retort A are provided with stuffing-boxes e e, and a steam-pipe, G, passes through the stuffingbox 6 and down near to the bottom of the retort, as clearly shown in Fig. 1 of the drawings. Through this pipe steam is admitted into the retort and directly into the oil contained therein, and in order to insure the uni form action of the steam on the oil that portion of the pipe 0 which extends along the bottom of the retort may be perforated with small holes, as indicated in Fig. l of the drawings. A branch pipe, 0, which connects with the steam-pipe 0, serves to admit superheated steam to the interior of the retort when it is desired, and stopcocks ff are so arranged that moist steam or superheated steam can be admitted at pleasure. The stuffing-box c, in the center of the opposite head of theretort, serves to make a tight joint round the discharge-pipe D, which passes into the retort and up near to its top, and which connects by its outer end with a coil, E, which is situated in the interior of the condenser F, and the end of which extends through the side of the condenser, so that the condensed vapors of the oil and the condensed water are discharged into a suitable reservoir.

The operation is as follows: The still is filled about two-thirds full of rock-oil, and steam is admitted at low temperatures through the steam-pipe G into the oil. As the steam comes in contact with the oil it condenses and forms into water, and during this action the oil is washed and gradually heated to about 100. Steam is then let into the coil B, and as the heat of the oil rises its vapors, together with the steam admitted through the pipe 0, pass off through the discharge-pipe D into the condenser. matter pass over partly before and partlywith the vapors of the oil, and they condense with the same and with the steam, the odor being retained by the condensed water and the coloring'matter being precipitated to the bottom of the oil, but remaining with it on the top of the water. The temperature of the retort is gradually raised by increasing the pressure of the steam and afterward by the introduction of superheated steam until all the volatile'prm ducts pass over, and when this point is reached the steam in the boiler is reduced, the super heated steam is shut oft, and the temperature of the still is speedily reduced from 600 or 800 down to 250 or 300, according to the pressure in the boiler. By passing this steam through the condenser the retort cools off and is ready for a new charge. By this operation much time is saved in comparison to the firekett-le, which must be left standing several days before it becomes cool enough to admit afresh charge. Furthermore, if any of the vapor should escape, there is no danger that it will explode, since it will always be mixed with steam.

This apparatus is simple and comparatively The odor and the.coloringcheer; in its construction, and it produces a, a steam-heating system of pipes, substantially clear oil almost perfectly free of the disagreein the manner and for the purpose herein able odor which is inherent to the crude oil. shown and described.

Having thus fully described my invention, What I claim as new, and desire to secure by ALBERGER" Letters Patent, is \Vibnesses:

The employment simultaneously within an D. BLACKFORD, oil-distilling retort of a steam-supplying and \VM. ROBINSON. 

